<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/480x640/548a6aa190cce_-_rbk-semi-organized-0911-school-4-msc.jpg>
<http://www.redbookmag.com/home/tips/g1288/organizing-tips/>